Hey

You cannot do PhD after BPT ( bachelor's in physiotherapy) you will have to do your MPT only then you will be eligible to do PhD.

As far as PhD in hematology is concerned, I think colleges mostly prefer MD, MS, MCh candidates. However you can apply for PhD in Physiotherapy. There many colleges which offer this.

PhD will be a three year program and you need to have scored atleast 55% at your Master's level to be eligible. Some colleges have their entrance test followed by interview to get admission.

To know more about hematology you can check this out https://www.careers360.com/courses/haematology-course

To know more about MPT specialization check this out https://www.google.com/amp/s/www.careers360.com/courses/mpt-master-of-physiotherapy/amp

I hope your question is answered if you have further queries you can ask anytime.